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Chainring bolt set with integrated covers for a clean transition from Q-ring to Shimano Dura Ace R9100 crank with 4-arm spider and 110x4 bolt circle diameter. CNC-milled and durable due to hard anodised surface.
- Shimano Dura Ace R9100 (4-arm, 110 mm bolt circle diameter)
- 4 x Rotor Crank Cover chainring bolt covers
- 4 x screw